【摘 要】
:
Data from the Solar Wind Ion Composition Spectrometer (SWICS) on Ulysses and synoptic maps from Kitt Peak are used to analyze the polar coronal holes of solar a
【机 构】
:
NationalAstronomicalObservatories,Max-Planck-InstitutfiirSonnensystemforschung
【基金项目】
:
NSF/NOAO, NASA/GSFC, and NOAA/SEL,NSF grant,the Ministry of Science and Technology of China under Grant,the Deutsches Zentrum für Lift-und Raumfahrt e.V.(DLR)